If you guys actually bothered to play on the SPGs properly, the accuracy isn't nerfed once you fully aim. The circle is just bigger.
I've got the S-51 and if you knew it's accuracy before the 8.6 update is was pretty bad. Yesterday I used it and I got three consecutive hits, none splash damage.

GeneralGrant, on 09 July 2013 - 01:06 PM, said:

One correction: you missed the eternity of loading between "Missed" and "Aiming"...
(Though, before anyone corrects my correction, yes, loading and aiming would hopefully be concurrent...)

The reloading is long, as well as the aim time, but if you get an SPG at the top of the match, which I have seen before, you wouldn't want it shooting consecutively - and single-handedly killing everyone in the other team.